July 21, 2026 · Phra Nakhon Si Ayutthaya, Thailand
Sunset in Phra Nakhon Si Ayutthaya today is at 18:50. Day length is 12h 51m. See below for sunrise, solar noon, dawn and dusk — all times calculated astronomically for Phra Nakhon Si Ayutthaya's coordinates and updated daily.
Phra Nakhon Si Ayutthaya lies at 14°N. Near the tropics, day length stays close to 12 hours year-round, with only minor variation between seasons.
Sunset shifts later through spring and earlier through autumn — changing fastest near the equinoxes and slowest near the summer and winter solstices. See the year chart to visualise how sunset times shift month by month for Phra Nakhon Si Ayutthaya.
The longest day in Phra Nakhon Si Ayutthaya is around 12h 58m (around June 21). The shortest is around 11h 17m (around December 21).
| Month | Sunset | Sunrise | Day length |
|---|---|---|---|
| January | 18:08 | 06:47 | 11h 22m |
| February | 18:23 | 06:43 | 11h 40m |
| March | 18:29 | 06:27 | 12h 2m |
| April | 18:32 | 06:05 | 12h 27m |
| May | 18:39 | 05:51 | 12h 47m |
| June | 18:48 | 05:50 | 12h 58m |
| July | 18:51 | 05:57 | 12h 54m |
| August | 18:42 | 06:05 | 12h 37m |
| September | 18:21 | 06:07 | 12h 13m |
| October | 17:59 | 06:09 | 11h 50m |
| November | 17:47 | 06:19 | 11h 28m |
| December | 17:52 | 06:35 | 11h 17m |